sdd-orchestration

Productivity

Spec-Driven Development: Orchestration protocol — working-spec.json lifecycle, phase management, initialization, and delegation guidance for SDD workflows

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Spec-Driven Development Orchestration

When the user wants to build a feature using Spec-Driven Development (SDD), you manage the full lifecycle: initialize → constitute → specify → clarify → plan → analyze → implement → review. You handle the interactive phases (constitution, specification, clarification) yourself. You delegate autonomous phases to specialist agents.

Loading SDD Skills

Before each phase, load the relevant skill using the skill tool:

Phase	Skill to load	Why
Constitution	`sdd-constitution`	Constitution template, versioning rules, quality rules
Specification	`sdd-specification`	Spec format (FR-001, SC-001), validation checklist
Clarification	`sdd-clarify`	Ambiguity taxonomy, prioritization, questioning protocol

When delegating, tell the delegate which skill to load:

Pattern → tell it to load sdd-planning (SDD plan format, task breakdown, Weave plan bridge)
Thread → tell it to load sdd-analysis (6-pass consistency analysis methodology)

Shared State: `.specify/working-spec.json`

This file tracks SDD progress across sessions. Read it at the start of any SDD-related conversation.

{
  "name": "user-authentication",
  "goal": "Build user authentication with email/password and OAuth",
  "status": "specifying",
  "phase_history": [
    { "phase": "initialized", "timestamp": "2026-03-30T10:00:00Z" },
    { "phase": "constituting", "timestamp": "2026-03-30T10:05:00Z" },
    { "phase": "specifying", "timestamp": "2026-03-30T10:15:00Z" }
  ],
  "paths": {
    "constitution": ".specify/memory/constitution.md",
    "spec": ".specify/features/user-authentication/spec.md",
    "plan": ".specify/features/user-authentication/plan.md",
    "tasks": ".specify/features/user-authentication/tasks.md",
    "analysis": ".specify/features/user-authentication/analysis.md",
    "weave_plan": ".weave/plans/user-authentication.md"
  },
  "created_at": "2026-03-30T10:00:00Z",
  "updated_at": "2026-03-30T10:15:00Z"
}

Status values (ordered phases): initialized → constituting → specifying → clarifying → planning → analyzing → implementing → reviewing → complete

Update after each phase transition: set status, append to phase_history, update updated_at, populate paths as artifacts are created.

Starting a New Feature

When the user says "I want to build X" (or similar, with or without mentioning SDD):

Generate a feature slug (lowercase, hyphens — e.g. "user-authentication")
Confirm slug and goal with the user
Create directories: .specify/memory/ (if needed), .specify/features/{slug}/, .specify/features/{slug}/checklists/
Write .specify/working-spec.json with status "initialized", all paths populated
If .specify/memory/constitution.md exists: read it, summarize, ask if updates needed
If not: load the sdd-constitution skill and proceed to constitution drafting

Phase Guidance

Constitution (interactive — you do this): Load sdd-constitution skill. Update status → "constituting". Ask about core principles (3-5) and governance. Offer sensible defaults. Write .specify/memory/constitution.md using the format from the skill.

Specification (autonomous — you do this): Load sdd-specification skill. Update status → "specifying". Read constitution, write spec at .specify/features/{slug}/spec.md using the format from the skill. Create requirements checklist at checklists/requirements.md.

Clarification (interactive — you do this): Load sdd-clarify skill. Update status → "clarifying". Scan spec for ambiguities using the methodology from the skill. Ask up to 5 questions, one at a time, multiple-choice with recommended option. Update spec after each answer.

Planning (delegate to Pattern): Tell Pattern to load the sdd-planning skill. Delegate with: feature goal, slug, spec path, constitution path, feature directory. Pattern creates plan.md, tasks.md, and .weave/plans/{slug}.md. Update status → "planning".

Analysis (delegate to Thread): Tell Thread to load the sdd-analysis skill. Delegate with all artifact paths. Thread writes analysis.md. Update status → "analyzing".

Review (delegate to Weft/Warp): Give Weft artifact paths, ask for APPROVE/REJECT. For security review, use Warp. Update status → "reviewing".

Implementation (hand off to Tapestry): Tell the user to run /start-work. The Weave plan is at .weave/plans/{slug}.md. Update status → "implementing".

Soft Sequencing

Before each SDD action, check working-spec.json status. If the user skips steps, note it conversationally and suggest the recommended next step — but always proceed if they insist.

Example: "I notice we haven't clarified the spec yet. The clarification step often catches ambiguities that save rework later. Want me to run through it, or should I plan from the current spec?"